Sulphur Fractions, Distribution, and Connections with Soil Attributes in the Gopalpur and Ishwardi Soil Series of Bangladesh

The deficiency of soil sulfur (S) is a prevalent issue in Bangladesh soils, posing a significant obstacle to enhancing crop yield and overall productivity. This study aimed to evaluate the distribution of different sulfur fractions across various soil depths in the Gopalpur and Ishwardi soil series, along with their relationships with other soil parameters. In both soil series, the sulfur fractions were ordered as follows: organic > adsorbed > available forms, with organic sulfur being the most abundant. Additionally, soil attributes such as pH, organic carbon, texture, and EC were assessed to understand their relationships with sulphur fractions. Results indicate significant variations in sulphur distribution between the two soils series, with organic sulphur dominating in Gopalpur soils and sulphate-sulphur prevailing in Ishwardi soils. Correlation analysis reveals strong associations between sulphur fractions and soil attributes, highlighting the influence of soil properties on sulphur dynamics. These findings provide valuable insights into sulphur cycling in agricultural soils of Bangladesh and underscore the importance of soil management practices for optimizing sulphur availability and crop productivity.